With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
bsnDot11EssWPAAuthPresharedKey
bsn Dot11 Ess WP A Authentication Preshared Key
1.3.6.1.4.1.14179.2.1.1.1.46
WPA Authentication Preshared Key. This applies only when bsnDot11EssWPAAuthKeyMgmtMode is in enable state. This has been deprecated for cLWSecDot11EssCckmTable.
Back to AIRESPACE-WIRELESS-MIB MIB page.
IPHost Network monitor allows you to monitor bsnDot11EssWPAAuthPresharedKey on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.